I'm a developer and do a lot of typing. My favorite of all time was the Northgate Omnikey Ultra from the late 80's. These days I use a dasKeyboard Model S Professional with the Cherry MX Blue switches. They run about $130.

Reds and Blacks are linear switches which means they have no feedback. They go straight up and down. There is no tactile bump and no audible click. Browns are tactile only. So there is no audible click but there is a tactile bump upon actuation. Blues are tactile and audible. So you get the bump and the click. I prefer Browns for typing and Reds for gaming. Reds are still comfortable for typing though. So I use Brown at work and Reds at home. A bunch of people I work with also use this setup. I also prefer a simple, sleek design with highest build quality. So I use Filco TKL boards.

Reds and Blacks are linear switches which means they have no feedback. They go straight up and down. There is no tactile bump and no audible click. Browns are tactile only. So there is no audible click but there is a tactile bump upon actuation. Blues are tactile and audible. So you get the bump and the click. I prefer Browns for typing and Reds for gaming. Reds are still comfortable for typing though. So I use Brown at work and Reds at home. A bunch of people I work with also use this setup. I also prefer a simple, sleek design with highest build quality. So I use Filco TKL boards.

Sweet! Thanks for the reply. I was checking out the Corsair models of keyboards. Also checking out the Rosewill brand ones. I will check those out two. What do you think about the Rosewill with the Cherry switches ? They seem pretty plain and basic, but I guess the cherry switches and simple design is what makes them good. Any experience with the Corsairs ? $160 seems heavy for a keyboard (although I paid $130 for this one now). I am thinking I will bring this one to my office. Razer makes great mice but the keyboards are only average.

I like the number pad on the right side. I also like the advanced features of the high end keyboards, (like macros, shortcuts, volume etc.. )

The Corsairs get great reviews but they look a little ridiculous in my opinion. If you're into that sort of thing I'd go for the CM Storm Trigger or Storm Trigger Z instead. Though they are getting hard to find. If you want a ton of those macro keys then the Corsair is really you're only option.
Not a fan of the Rosewill 9000 series. The 9100 series however is basically a rebranded Max Keyboard. Top quality.
The Max Keyboards themselves might have more options though: http://www.maxkeyboard.com/max-keyboard-nighthawk-x9-red-backlit-mechanical-keyboard.html
The Max Keyboards are my favorite when you're talking "extra features" mechanical keyboards.

Every review seems to state that Logitech is inferior to most other true high end keyboards

I bought one the other day when Amazon had a big sale on Logitech products. I've been very happy with it so far. My only complaint would be the programmable keys are on the left side and when I go to hit CTRL or SHIFT I sometimes end up hitting one of the programmable keys because I'm so used to the CTRL and SHIFT keys being the farthest right. Just need time to adjust.

Do you want 10 key or is that just what you found? Same with switches.... do you know the difference between Black/Red/Clear/Brown/Blue/Green Cherry switches? You can definitely find better deals. Especially if you're patient. The Rosewill 9000 boards have bad USB connectors. It's typically recommended to stay away from them mainly because you can find boards at the same price without USB connector issues.

The different switches are going to be personal preference. Browns and Blues are often preferred for typing. Any of the Cherry switches will be more comfortable for typing than regular rubber dome you find on typical keyboards though.
10 key is the number pad on the right. Some people learned to type with 10 key and can't live without it. Some people don't care. Keyboard without 10 key are called ten keyless or TKL. I prefer TKL because I can center the typing rows in front of my body and have my mouse closer to my hand. Would you buy a used keyboard?

Once you get one of these, every other keyboard will feel ( insert your favorite acronym). It IS that good. I think my typing speed (which is abysmal) went up probably by a factor of 50% just because of the keyboard. Oh, and it looks great.

You're not alone. I didn't either, because I used to be primarily a Windows user. And then I built a Mac...and then I got the Apple wired keyboard (and the trackpad, which is another amazing component. Blows ANY mouse out of the water completely in OSX, but Apple has crippled it for Windows).

Once I started using it with the Mac, I said, man, this is a sweet keyboard, why doesn't something like this exist for Windows? Well, minor tweaks with AutoHotKey, and this is THE best desktop keyboard I've used.

Note though, I'm not a gamer or anything, so those guys may have special requirements that this keyboard won't fulfill.